Pouring shell for pipe molds



July 3, 1928.

J. R. WOOD POURING SHELL FOR PIPE MOLDS Filed May 29, 1925 INVENTOR W,Q/l/u ATTORNEYS Fill Patented July 3, 1928.

UNITED STATES JOHN R. WOOD, OF HATBORO, PENNSYLVANIA, ASSIGNOR TO NEWPROCESS MULTI PATENT OFFICE.

CASTINGS COMPANY, OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY.

POURING SHELL FOR IE'IPE MOLD S.

Application filed May 29, 1925. Serial No. 33,607.

for cope molds and used with a drag mold shell or with a drag with thedrag mold therein. It relates particularly to a shell for a cope moldfor use with the pipe mold made according to my copending applicationSerial No. 33,606 tiled May 29, 1925.

According to my invention a shell is provided for use with the drag inplace of the cope during casing of pipe in the mold, means beingprovided i'or positioning the shell properly in the drag and forclamping it thereon. This shell is provided with braces across the topfor stiffening the shell and for holding the mold therein againstraising thereof by the molten metal, the braces being made movable intheir posltion on the shell for accommodating pouring gates which may bepositioned at various parts of the mold according to the size and shapeof the patternand so on.

In the drawing forming part of this ap plication Fig. 1 shows aperspective view in part of a drag for a pipe mold with both the dragand cope molds positioned therein and thereon and pipe cores properlypositioned between the molds,

Fig. 2 is a perspective view in part showing the drag, cores, and moldof Fig. 1 with the cope mold shell mounted on the drag and about thecope mold and fastened to the drag, adjustable braces being shown on theshell, and

Fig. 3 is a perspective view in part show ing an embodiment of the copemold shell for a pipe mold of my invention with position and clampingmeans thereon, with slots in an upper flange thereof for the fasteningthereto of adjustable braces, and with ballround notches in the endsthereof corresponding with similar notches in the drag with which theshell is used, said notches being provided for holding therein the endof pipe cores mounted in the mold and entering therethrough.

In Fig. 1 of the drawing the drag is provided at each end withsemi-circular notches 11, 11 for accommodating the, ends of the pipecores 12, 12 which cores are mounted between the drag mold and the copemold 13. The lugs 14, 14 having the holes 15, 15 formed therethroughserve for clamping a cope mold shell thereto as hereinafter describedand said holes 15, 15 serve for positioning the said shell properly onthe drag by receiving corresponding pins on said shell. The handles 16,16 serve for the handy transportation of the drag, mold etc.

In Fig. 3 is shown the cope mold shell 20 which has formed at bottomedges of its ends the notches 21, 21 corresponding to notches 11, 1.1 inthe drag and cooperating therewith to receive and clamp the ends of thepipe core 12, 12 (see Fig. 1.) Inwardly from the top edges 01 the shell20 extends the rim flange 22 which has formed therein a plurality ofslots 23, 23 which extend lengthwise thereof which slots serve toreceive bolts for clamping braces at desired positions across the top 01the shell as here inai'ter described. Along the sides of the shell 20are provided lugs 24, 24 in which are rotatably mounted the shafts 25,25 which carry the clamping members 26, 26 which serve to engage thelugs 14, 14 of the drag 10 for the clamping the shell 20 to drag 10. Thehandle 27 on each of said shafts 25 serve for the turning thereof intoand out of the rotating position 01? said clamping members 26, 26. Thelugs 28, 28 carry the downwardly extending pins 29, 29 which lit intothe holes 15, 15 for the proper positioning of the shell 20 on the drag10. The handles 31, 31 serve for the transportation of the shell.

In the use of the shell 20 as shown in Fi 2 it is placed on the drag 10of Fig. 1 over the cope mold 13 and the handles 27, 27 turn down toengage clamp members 26, 26 with said lugs 14, 14, said pins 29, 29,engaging said holes 15 for the proper position of the shell on the drag.Before the placing of the shell 20 on the drag and mold however thebraces 32, 32 are properly placed across the top of shell 20 in accordance withthe positions of the muring gates 33, 33 in said mold andfastened to said flange 22 by the bolts 34, 34 extending therethroughandthrough said slots 23, 23. It can be seen that said notches 11 and 21cooperate the ends of said pipe core 12, 12 securely between the shelland drag to hold them against movement by molten metal when poured intothe mold. Said braces 32, 32 in a similar manner hold the cope moldagainst movement by such molten metal as well. as to stiffen the shelland thereby permitting it to be made with comparatively thin walls andso of light weight. The

new

comparatively greatspace between braces 32, 32 permit of ready passageofhet gases' and vapors from the mold as do the Slots 34-, 34 formed" inthe sides of shell 20.

ll. claim:

1. A shell for pipe cope molds comprising a longitudinal box open at its-top and hot-- torn, having flanges along the top edges of the shellhaving longitudinal slots therein adapted to acljustably receive bracesacross the top and having pipe core engaging re"- cesses formed at itsen'cls.

shell for clamping onto a cooperating drag 20 In testimony whereof Ihereto afilx my signature. i a JOHN R WOFJD.

